None of them work, I was bricked trying the methods and I cant even use any of their(Galaxy Axiom) tutorials to get my phone back booting to normal...Does any one know a way or have a way to get the stock 4.1.2 firmware file?? I need to so I can odin back to stock and get out of this brick

Im getting a device not found error when hitting the start button on the cydia impactor. Any ideas what that could be?

It happened with me in the beginning too. Make sure the drivers are installed and USB debugging is enabled. If you have to, disconnect the USB and plug it back in right before hitting the button. Restart the device if needed and then try rebooting your computer if that doesn't work.

Check device manager to see if you have the device connected. Should look like this: